wireless made simple ? revised 1/28/08 description ms series encoders and decoders are ideal for remote control and command, security, keyless entry, status monitoring, and a host of similar applications. they allow the status of up to eight buttons or contacts to be securely transferred via a wireless link. the master development system is intended to give a designer all the tools necessary to incorporate the keyfob transmitter, lr series receiver, and ms series decoder into a product. this guide will show how to take full advantage of the evaluation board included with the kit. data guides for all of the linx parts contained in the kit are included or may be downloaded from the linx website. the master development system serves several important functions: ? rapid evaluation - it allows the performance and features of the keyfob, lr series, and ms series to be quickly evaluated. ? design - it shows how to design with the decoder and how to interface with other components. it also demonstrates the overall system function, making it easy to develop the initial system design. ? prototype development - it allows for additional circuitry to be placed directly on the board so that it can act as the first prototype of the product. all of the signals are available on a wire-wrap header for easy connection to external circuitry. the kit includes 2 keyfob transmitters, 2 lr series receivers*, 2 ms series decoders*, 1 development board set up for the receiver and decoder, and 1 cw series antenna. the decoder board is also populated with 1 qs series usb module for use with the software on the included cd. *one part is soldered to the board, one extra is for use on your first prototype board. ms keyfob master development system user?s guide part # description mdev-***-hh-kf#-ms ms keyfob master development system *** = 315, 418 (standard), 433mhz # = 1-5, number of buttons ordering information mdev-315-hh-kf#-ms mdev-418-hh-kf#-ms mdev-433-hh-kf#-ms
page 3 page 2 ms series decoder development board 1. 9v battery 2. power jack 3. on-off switch 4. voltage regulator 5. qs series usb module 6. prototype area 7. break-out header 8. rp-sma antenna connector 9. lr series receiver 10. ms series decoder 11. data line leds 12. indicator leds 13. function switches 14. learn button 1 2 7 3 4 5 6 8 9 10 11 13 14 12 using the master development system using the master development system is straightforward. after unpacking the board, screw the antenna onto the connector, install the supplied 9v battery, and turn on the power switch. the encoder and decoder will have default settings from the factory and will work straight out of the box. to create a new address, follow these easy steps: 1. press and hold the create_addr button on the transmitter to create a new code word. this is done by sticking a paper clip through the hole on the back of the case and pressing the button inside. the code word will be randomized for as long as the button is held down. once comfortable that the number is sufficiently random, release the button. 2. once the button is released, the mode_ind led will begin to flash to indicate that it is ready to accept control permissions. press all of the data line buttons that are to be recognized, then press the create_addr button again or let it time out after seventeen seconds. 3. press the learn button on the decoder board and the mode_ind led will start flashing. press any of the data line buttons on the transmitter and press the learn button again. the encoder?s code word has now been learned by the decoder and they will operate together. troubleshooting if the boards fail to work out of the box, then try the following: ? check the battery to make sure it is not dead. ? make sure the baud rate switches are set to 9,600bps on the decoder board. ? make sure that the antenna is connected. ? check to see if the pdn switch is on, placing the decoder into power down mode. in most cases, the encoder pdn switch should be on. ? make sure that you set your control permissions correctly. if you have not set the encoder to use a particular line, then when you press a button on the encoder board, the mode_ind led on the decoder board will light up, but the data line led will not light up. if all of these appear to be in order, then you can call 800-736-6677 or e-mail techsupport@linxtechnologies.com for technical support. figure 1: the ms series decoder development board
the decoder board the decoder board included with the evaluation kit uses the lr series receiver to receive the signal from the keyfob transmitter and then feeds it into the ms series decoder. the board is designed to allow full access to the many features of the decoder and to speed development and integration of the lr and ms into a product. the following sections describe the features of this board in detail. the prototyping area the prototyping area on the decoder board contains a large area of plated through-holes so that external circuitry can be placed on the board. this circuitry can be interfaced with the ms series decoder through the breakout header to the right of the holes. at the bottom of this area is a row connected to the 3v power supply and at the top is a row connected to ground. all of the data lines are connected to a wire-wrap header to the right, allowing easy access from the prototyping area. the decoder data and tx id lines are also available on the header as well as the pdn line from the rf module. this allows complete control of the entire system from the prototyping area, giving the designer a great deal of flexibility in using the board. the power supply the power supply on the decoder board consists of a standard 9v battery and power jack connected to a 3.0v voltage regulator. it can provide approximately 500ma of current to the prototyping area, so if the added circuitry will need more than this, the designer must add an external supply. if the circuit will consistently draw more than 100ma of current, it might be better to use the power jack rather than the battery, as the battery may run down fairly quickly, reducing testing and development time. the jack accepts a standard 5.5mm plug with the tip ground and the outer shell 7 to 16vdc positive supply. while a reverse voltage protection diode has been included on the board to protect the circuitry in case the voltage on the plug is reversed, it is still a good idea to double-check the polarity. the rf area the figure below shows the rf area of the development board. the board uses the lr series receiver as shown. attach the included antenna to the reverse polarity sma connector before operation. page 5 page 4 figure 4: the decoder board rf area setting the transmitter address the keyfobs are all supplied from the factory with a default address and all buttons authorized. the address is changed by using a paper clip or probe to press the create_addr button on the board through the hole in the back of the case. when the button is depressed, a led will light up in the mode_ind window, indicating that the address is being created. the address will be randomized for as long as the button is held down. when the button is released, the randomized address is saved and the led will begin flashing to indicate that the control permissions may now be set. press the buttons that the keyfob user will have the authority to access. press the create_addr button with the paper clip again or wait 17 seconds for it to time out. the address and control permissions are now set. the decoder will need to learn the address before it will accept any transmissions. please see the typical applications section of this data guide or the ms series decoder data guide for details. button assignments the keyfob is available in five unique button configurations. those configurations and the corresponding switch numbers are shown in the figure below. the table shows which encoder data line has been assigned to each switch. when a button is pressed, the data line will go high, causing the corresponding data line on the decoder to go high if the addresses match. figure 2: create_addr button access create_addr button access s4 s2 s1 s3 s5 s5 s2 s5 s4 s4 s2 s4 s1 s3 s2 figure 3: otx-***-hh-kf#-ms button assignments button data line s1 d0 s2 d1 s3 d2 s4 d3 s5 d4
page 7 page 6 the decoder board (cont.) the decoder area the figure below shows the decoder area of the development board. the decoder is in the center beneath the linx logo. to the left are leds that are connected to the decoder data lines. these will light up when the decoder receives a signal from the transmitter instructing it to take the data line high. led d0 corresponds to data line d0 and so forth. beneath the decoder are two leds. d12 is connected to the mode_ind line. d8 is connected to the rx_cntl line and will provide visual feedback by lighting up when the decoder activates the receiver when in rx control mode. under the leds is a button that is connected to the learn line. this button is used to learn the code word from the encoder as described in the ms series decoder data guide. there are four switches to the left of the create / learn button. bsel0 and bsel1 are used to set the baud rate of the decoder as shown in the chart below. the keyfob transmitter is set to 9,600bps, so bsel0 should be on and bsel1 should be off. if the switch is up, then the line is high (on); if down, then the line is low (off). *important* the decoder board must be set to the same baud rate as the transmitter in order for the signal to be received correctly. the pdn switch will connect the rx_cntl line of the encoder to the pdn line of the receiver so that the rx control mode can be tested. this mode is described in the ms series decoder data guide. the latch switch will place the decoder into latch mode when on, so that the data lines will go high when a valid signal is received and stay high until a second valid signal is received. if the switch is off, the data lines are momentary. figure 5: the decoder area bsel1 bsel0 baud rate 0 0 2,400 0 1 9,600 1 0 19,200 1 1 28,800 the decoder board (cont.) the usb area the decoder board has a linx sdm-usb-qs-s usb module for use with the included development software. this module is powered by the usb bus, so it will not pull any current from the battery. the figure below shows this section. the microcontroller on the right monitors the data lines and generates commands that are sent to the development software on the pc via the qs series usb module. the rx_ind led to the left of the module will flash to indicate that data is being received from the pc, and the tx_ind line will flash to indicate that the module is sending data to the pc. the qs series usb module provides a simple serial link to a pc via a usb connection. it converts logic-level serial signals to usb-compliant signals and vice versa, so it can be connected to virtually any serial device, including microcontrollers, rs-232 / rs-485 level converters, or linx rf modules. it is completely self-contained, requiring only a usb type b jack, and includes all necessary firmware and drivers. figure 6: the decoder board usb area
page 9 page 8 installing the software and drivers the master development system uses the qs series usb module to provide a simple serial interface to a pc via a usb connection. the module requires drivers to be installed on the pc before it can function properly. the qs series direct drivers are included on the cd with the software. the first time the qs module is plugged into the computer, windows will display the found new hardware wizard, which will guide you through installing the drivers. application note an-00201 describes the installation of the drivers in detail. the drivers should be installed before running the development software. the ms master development software will automatically start when the cd is inserted and the player in the figure below will appear. clicking the install software button will start the installation wizard, which will guide you through the installation of the development software. the view documentation button will show a list of the application notes and manuals related to the ms series. selecting one of these will open the file in adobe acrobat. the play movie button will play a short video about linx on the player screen, which can be controlled with the selection keypad. clicking the button on the bottom right of the player will open the linx technologies website in the computer?s default browser. the view documentation list allows for the installation of adobe acrobat reader so that the documents may be viewed. there is also the option of installing flash, which may be required if the linx video does not play correctly. install software view documentation play movie exit go to the linx website selection keypad player screen figure 7: software installer master development software this software is designed to give a complete understanding of how the ms series encoders and decoders work together, as well as providing an idea of how they can be used in a system. the master development software can be used in one of two modes. the default mode is a software simulation of the system and does not require any hardware. it simulates two handheld transmitters as well as two receiving devices. this is a good way of showing how the ms series can work in a system by turning on lights and opening doors. the second mode is for use with the master development system. when the decoder board is plugged into a usb port on the pc, the transmitter can be used to activate the features in the software. if you can see the leds on the evaluation board turn on, then you will see the leds in the program turn on and activate the corresponding data line function. the figure below is a screen shot of the program set up in software operation mode for simulating the operation of the system. the transmitters are on the right hand side and the receivers are at the bottom. complete instructions for using the software can be found by clicking on the help label at the top right of the window. figure 8: ms encoder / decoder demonstrationsoftware
page 11 page 10 latch ra2/an2 1 ra3/an3 2 ra4/an4 3 ra5/mclr 4 gnd 5 gnd 6 rb0/int 7 rb1 8 rb2/rx 9 rb3 10 rb4 11 rb5/tx 12 rb6/an5 13 rb7/an6 14 vcc 15 vcc 16 ra6 17 ra7 18 ra0/an0 1 9 ra1/an1 20 u7 pic16lf88 gnd vcc gnd vcc gnd gnd gnd gnd gnd d7 d4 tx_id d6 d3 d0 d1 d2 d5 data_pc pdn dec_data gnd gnd vcc rf1 es rf 1 gnd 2 nc 3 gnd 4 vcc 5 lr pdn 6 lr rssi 7 lr data 8 nc 9 es audio ref 10 es audio 11 es data 12 es rssi 13 es pdn 14 gnd 15 lr rf 16 u4 rxm-xxx-lr rxm-xxx-es gnd pdn dec_data rf2 ant1 revsmapcb gnd rf1 ant2 revsmapcb gnd rf2 data_pc 5v 1 dat - 2 dat+ 3 gnd 4 gshd 5 gshd 6 j2 usb-b usbdp 1 usbdm 2 gnd 3 vcc 4 susp ind 5 rx ind 6 tx ind 7 485 tx 8 dtr 9 cts 10 rts 11 data out 12 data in 13 dsr 14 dcd 15 ri 16 u5 sdm-usb-qs gnd gnd gnd gnd r 9 200 d11 rx_ind r10 200 d10 tx_id d7 d4 d6 dec_data d3 d0 d1 d2 d5 gnd d2 d2_ind d3 d3_ind d4 d4_ind d5 d5_ind d6 d6_ind gnd r11 200 d7 d7_ind d0 d0_ind d1 d1_ind send pdn r7 100k r6 100k r0 100k r1 100k r2 100k r3 100k r4 100k r5 100k data_out tx_id gnd gnd gnd gnd gnd gnd gnd gnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 j3 con14 gnd b1 9 v battery gnd sw15 power switch gnd + c1 220uf gnd vcc c2 10uf gnd vcc d 9 diode400 vb sw vb va j1 pwrjack gnd gnd 1 vout 2 vin 3 u2 vreg-3v vreg-5v (es rx only) pdn 1 lvl/am 2 vcc 3 gnd 4 data 5 /clk 6 /clk sel 7 lv det 8 gnd 9 rf 10 u8 txm-xxx-es gnd vcc data_out pdn rf2 gnd vcc gnd 1 data in 2 gnd 3 ladj/vcc 4 rf out 5 gnd 6 vcc 7 pdn 8 u3 txm-xxx-lr gnd vcc gnd gnd data_out pdn rf1 r27 620ohm encoder / decoder section power supply section usb section rf section vcc gnd r13 100k gnd dec_data gnd r22 100k latch sw 9 hs_send_key vcc sw13 hs_create_key vcc j5 hs_key_in j4 hsd_key_out gnd gnd r25 200 d12 mode_ind gnd gnd sw16 create/learn gnd r23 100k data_out vcc gnd d7 d4 d6 d3 d0 d1 d2 d5 vcc vcc s5 d5 vcc s4 d4 s3 d3 s2 d2 s1 d1 s0 d0 s6 d6 s7 d7 pdn send vcc gnd r12 100k r26 0k d6 d7 sel_baud0 sel_baud1/hse_gnd/hsd_send_key gnd gnd key_in/mse_gnd/msd_latch tx_cntl/msd_rx_cntl/hsd_create_key data_out/msd_tx_id/hsd_key_out mode_ind create_addr/dec_learn send/dec_data_in d0 d1 vcc vcc d2 d3 d4 d5 u1 lical-xxx-ms lical-xxx-hs sw11 sel_baud0 tx_id sw10 latch sw14 pdn sw12 sel_baud1 gnd aout 1 ain- 2 ain+ 3 gnd 4 cin+ 5 cin- 6 cout 7 vcc 8 u6 tlv2302 hs-enc r21 100k vcc r18 9 .1m r20 51k c5 0.01uf vcc vcc gnd gnd gnd gnd c4 4.7uf r16 9 .1m r15 9 .1m r1 9 10k r14 5.1m r17 9 .1m ir1 ps1102 sw8 sw-pb gnd ir2 ir key_out r24 150 ohm gnd gnd r8 200 d8 tx_en r28 10k
linx technologies, inc. 159 ort lane merlin, or 97532 phone: (541) 471-6256 fax: (541) 471-6251 www.linxtechnologies.com u.s. corporate headquarters wireless made simple ? linx technologies is continually striving to improve the quality and function of its products. for this reason, we reserve the right to make changes to our products without notice. the information contained in this overview guide is believed to be accurate as of the time of publication. specifications are based on representative lot samples. values may vary from lot-to-lot and are not guaranteed. "typical" parameters can and do vary over lots and application. linx technologies makes no guarantee, warranty, or representation regarding the suitability of any product for use in any specific application. it is the customer's responsibility to verify the suitability of the part for the intended application. no linx product is intended for use in any application where the safety of life or property is at risk. linx technologies disclaims all warranties of merchantability and fitness for a particular purpose. in no event shall linx technologies be liable for any of customer's incidental or consequential damages arising in any way from any defective or non-conforming products or for any other breach of contract by linx technologies. the limitations on linx technologies' liability are applicable to any and all claims or theories of recovery asserted by customer, including, without limitation, breach of contract, breach of warranty, strict liability, or negligence. customer assumes all liability (including, without limitation, liability for injury to person or property, economic loss, or business interruption) for all claims, including claims from third parties, arising from the use of the products. the customer will indemnify, defend, protect, and hold harmless linx technologies and its officers, employees, subsidiaries, affiliates, distributors, and representatives from and against all claims, damages, actions, suits, proceedings, demands, assessments, adjustments, costs, and expenses incurred by linx technologies as a result of or arising from any products sold by linx technologies to customer. under no conditions will linx technologies be responsible for losses arising from the use or failure of the device in any application, other than the repair, replacement, or refund limited to the original product purchase price. devices described in this publication may contain proprietary, patented, or copyrighted techniques, components, or materials. under no circumstances shall any user be conveyed any license or right to the use or ownership of such items. disclaimer ? 2008 by linx technologies, inc. the stylized linx logo, linx, ?wireless made simple?, cipherlinx, and the stylized cl logo are the trademarks of linx technologies, inc. printed in u.s.a.
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